ISL6431CB datasheet(3/10 Pages) INTERSIL

Part #	ISL6431CB

Description	Advanced Pulse-Width Modulation (PWM) Controller for Home Gateways

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Manufacturer	INTERSIL [Intersil Corporation]

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Absolute Maximum Ratings

Thermal Information

Supply Voltage, VCC .. ... .. .. .. .. .. .. .. .. .. ... .. .. ..+6.0V

Absolute Boot Voltage, VBOOT .. .. .. .. .. .. .. .. . . . . . ..+15.0V

Upper Driver Supply Voltage, VBOOT -VPHASE .. ... .. .. .. +6.0V

Input, Output or I/O Voltage . . . . . . . . . . . GND -0.3V to VCC +0.3V

ESD Classification .. .. ... .. .. .. .. .. .. .. .. .. ... .. .. . Class 2

Operating Conditions

Supply Voltage, VCC . . ... .. .. .. .. .. .. .. .. .. ... .. +5V±10%

Ambient Temperature Range . .. .. .. .. .. .. .. .. .. -40oCto 85oC

Junction Temperature Range.. .. .. .. .. .. .. .. .. -40oCto 125oC

Thermal Resistance (Typical, Note 1)

θJA (oC/W)

SOIC Package . . . . . . ... .. .. .. .. .. .. .. .. .. ..

100

Maximum Junction Temperature .. .. .. .. .. .. .. .. . . . . . . 150oC

Maximum Storage Temperature Range .. .. .. .. .. -65oCto 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operationof the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1.

θJA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications

Recommended Operating Conditions, Unless Otherwise Noted VCC =5.0V±5% and TA =25

oC

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VCC SUPPLY CURRENT

Nominal Supply

IVCC

ISL6431CB; UGATE and LGATE Open

-

3.2

-

mA

ISL6431IB; UGATE and LGATE Open

2.5

3.2

3.8

mA

POWER-ON RESET

Rising VCC POR Threshold

POR

ISL6431CB

-

4.30

-

V

ISL6431IB

4.17

4.30

4.50

V

VCC POR Threshold

Hysteresis

ISL6431CB

-

0.20

-

V

ISL6431IB

0.01

0.20

0.85

V

OSCILLATOR

Frequency

fOSC

ISL6431CB; VCC = 5V

-

300

-

kHz

ISL6431IB; VCC = 5V

230

300

340

kHz

Ramp Amplitude

∆VOSC

ISL6431CB

-

1.5

-

VP-P

ISL6431IB

-

1.5

-

VP-P

REFERENCE

Reference Voltage Tolerance

ISL6431CB

-

1.5

%

ISL6431IB

-

1.5

%

Nominal Reference Voltage

VREF

ISL6431CB

-

0.800

-

V

ISL6431IB

-

0.800

-

V

ERROR AMPLIFIER

DC Gain

ISL6431CB

-

82

-

dB

ISL6431IB

-

82

-

dB

Gain-Bandwidth Product

GBWP

ISL6431CB

14

-

MHz

ISL6431IB

14

-

MHz

Slew Rate

SR

ISL6431CB; COMP = 10pF

-

8.0

-

V/

µs

ISL6431IB; COMP = 10pF

4.5

8.0

9.2

V/

µs

GATE DRIVERS

Upper Gate Source Current

IUGATE-SRC ISL6431CB; VBOOT -VPHASE =5V, VUGATE =4V

-

1.0

-

A

ISL6431IB; VBOOT -VPHASE =5V, VUGATE =4V

-

1.0

-

A

Upper Gate Sink Current

IUGATE-SNK

ISL6431CB

-

1.0

-

A

ISL6431IB

-

1.0

-

A

Lower Gate Source Current

ILGATE-SRC

ISL6431CB; VCC =5V, VLGATE =4V

-

1.0

-

A

ISL6431IB; VCC =5V, VLGATE =4V

-

1.0

-

A

ISL6431

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